Patent US3303639A successfully refreshed from Google Patents.
US3303639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumtic false twister
Assignee: Monsanto Co
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Filing: 1965-06-23
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Granted: 1967-02-14
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Expires: 1985-06-23
Abstract
No abstract record available.
Inventors
- 👤 Ernest P Carter
- 👤 Roger S Otstot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:00
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/02; D02G1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
APPARATUS FOR IMPARTING FALSE TWIST TO A CONTINUOUS STRAND, COMPRISING: (A) A BODY MEMBER HAVING AN INTERNAL BORE WHICH IS SUBSTANTIALLY UNOBSTRUCTED AT ONE END THEREOF, (B) A HOLLOW MEMBER DISPOSED IN SAID BORE, SAID MEMBER HAVING A PASSAGEWAY FOR RECEIING A YARN TO BE FALSE TWISTED, (C) A SCREW THREAD-LIKE CONFIGURATION CIRCUMSCRIBING SAID HOLLOW MEMBER, AND (D) AN INLET FOR INTRODUCING A GASEOUS MEDIUM INTO THE INTERNAL BORE WHEREIN SAID THREAD-LIKE CONFIGURATION IS ADAPTED FOR DIRECTING SAID MEDIUM IN A COHERENT STREAM HAVING A COILING MOTION WHEREBY FALSE TWIST IS IMPARTED TO SAID YARN.
Claim 2
Dependent Claim
95 words
APPARATUS FOR IMPARTING FALSE TWIST TO A CONTINUOUS STRAND, COMPRISING: (A) A BODY MEMBER HAVING AN INTERNAL BORE WHICH IS SUBSTANTIALLY UNOBSTRUCTED AT ONE END THEREOF, (B) A HOLLOW MEMBER DISPOSED IN SAID BORE, SAID MEMBER HAVING A PASSAGEWAY FOR RECEIING A YARN TO BE FALSE TWISTED, (C) A SCREW THREAD-LIKE CONFIGURATION CIRCUMSCRIBING SAID HOLLOW MEMBER, AND (D) AN INLET FOR INTRODUCING A GASEOUS MEDIUM INTO THE INTERNAL BORE WHEREIN SAID THREAD-LIKE CONFIGURATION IS ADAPTED FOR DIRECTING SAID MEDIUM IN A COHERENT STREAM HAVING A COILING MOTION WHEREBY FALSE TWIST IS IMPARTED TO SAID YARN.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |